[Autumn]

I'm worried that Poison/Lingering Damage may still do more than that, since at most that's a 60 HP revive, while badly beaten. It's not as bad as 1, but if not (Character level * 2), could this be readdressed in the future to grant damage immunity against non-direct damage until your next round, or should it stay as it is?

You won't die to random 8 round cinders anymore unless they're excute or sear'd cinders, but DoTs should probably remain, they have a far shorter duration and need to be applied before someone dies in order to be made full use of.